Ecology and Energy Use ·

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Quarter 1 Assignments:

#1: Chief Seattle speech and questions
chief_seattle_reading.doc

#2: Food chains
Food_Chain_Notes.doc

#3: Notes on populations with graphs
population_competition.ppt

#4: Homework: p. 89 #1-6 due Friday, 9/18
#5: Classification Handout with questions
#6: Homework: p. 107 #1-4 due Thursday, 9/24
#7: Rachel Carson reading - underline three ideas
excerpts_silent_spring.doc

Vocabulary assignment #1: due Tuesday, 9/29
Part A) Define the following terms.
Part B) Either use them in a paragraph or create a drawing that shows what each word means.
You may use your glossary, index, or a dictionary to find and define the terms. If the word is not found in the glossary, I have provided a page number where you can find the word. You should also be able to find a sentence that says what the word means.

Words: algae (p. 497), classification (p. 425), decomposer/decomposition, food web, fungus/fungi (p. 521), producer, consumer, food chain, population, and competition (p. 113)

#8: "The DDT Story"

#9: Notes on ecosystems
Population_size.ppt

Upcoming assignments:
#10: Homework found on assignment #8: "Antarctic Ecosystem"
Part A) First, construct a food web using the organisms found in the student's notebook.
Part B) Then identify a producer, a primary consumer, a secondary consumer, and a tertiary (higher order) consumer from your food web.

#11: Reading on Malaria
malaria_rachel_wrong.doc

#12: Notes about the film: "Deadly Messengers"
#13: Microscope - Label
#14: Homework handout - Deer Question (See Below)
#15: Homework TBD


"ANTARCTIC ECOSYSTEM"
A biology student doing research collects the following information about feeding relationships in an Antarctic ecosystem.
Antarctic Ecosystem information
Antarctic Ecosystem information

  1. Use these notes to construct a food web of this ecosystem in your Student Answer Booklet.
  2. In your food web, identify one organism at each of the following trophic levels: producer, primary consumer, secondary consumer, and higher-order consumer.

    ELK QUESTION
The following section focuses on the interactions of organisms in a food web.
  • Read the information below and use it to answer the four multiple-choice questions and one open-response question that follow.
  • || ||
  • || A partial food web for organisms in Yellowstone National Park is shown below. ||
  • ||
    partial food web
    partial food web
    ||
Assume the elk population in Yellowstone National Park increases. Discuss how this increase in elk will most likely affect each of the following populations:
  • Idaho fescue
  • migratory grasshopper
  • grizzly bear
Be sure to include specific reasons to support each of your responses.


DEER QUESTION
The graph below shows changes in the birthrate and death rate for a large population of deer over a 20-year study period.
Changes in birthrate and death rate over time
Changes in birthrate and death rate over time

  1. Describe and explain two factors that can affect the birthrate in the deer population.
  2. Describe and explain two factors that can affect the death rate in the deer population.
  3. Identify one time period on the graph during which the deer population was increasing. Explain your answer.